<template>
  <!-- 新增部门的弹层 -->
  <el-dialog
    :title="dialogTitle"
    :visible="showDialog"
    @close="handleCloseDialog"
    @open="getSimpleUserList"
  >
    <!-- 表单组件  el-form   label-width设置label的宽度   -->
    <!-- 匿名插槽 -->
    <el-form ref="form" :model="form" :rules="rules" label-width="120px">
      <el-form-item label="部门名称" prop="name">
        <el-input
          v-model="form.name"
          style="width: 80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item label="部门编码" prop="code">
        <el-input
          v-model="form.code"
          style="width: 80%"
          placeholder="1-50个字符"
        />
      </el-form-item>
      <el-form-item label="部门负责人" prop="manager">
        <el-select
          v-model="form.manager"
          style="width: 80%"
          placeholder="请选择"
        >
          <el-option
            v-for="item in userList"
            :key="item.id"
            :label="item.username"
            :value="item.username"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="部门介绍" prop="introduce">
        <el-input
          v-model="form.introduce"
          style="width: 80%"
          placeholder="1-300个字符"
          type="textarea"
          :rows="3"
        />
      </el-form-item>
    </el-form>
    <!-- el-dialog有专门放置底部操作栏的 插槽  具名插槽 -->
    <div slot="footer">
      <el-button type="primary" size="small" @click="clickSubmit">确定</el-button>
      <el-button size="small" @click="handleCloseDialog">取消</el-button>
    </div>
  </el-dialog>
</template>

<script>
import { resGetSimpleUserList } from '@/api/user'
import { reqAddDepartment, reqGetDepartDetail, reqUpdateDepartDetail } from '@/api/departments'
export default {
  props: {
    showDialog: {
      type: Boolean,
      default: false
    },
    nodeData: {
      type: Object,
      required: true
    },
    deptList: {
      type: Array,
      required: true
    }
  },
  data() {
    const validateName = (rules, value, callback) => {
      console.log(value, this.nodeData, this.deptList)
      // 我们发现将来如果是编辑部门时，不能找子部门比较，还是找同级部门
      let res = []
      if (this.form.id) {
        if (value === this.nodeData.name) {
          callback()
          return
        }
        res = this.deptList.filter((item) => item.pid === this.nodeData.pid)
      } else {
        res = this.deptList.filter((item) => item.pid === this.nodeData.id)
      }

      const isRepeat = res.some((item) => item.name === value)
      isRepeat ? callback(new Error('同级部门已经出现该部门名称')) : callback()
    }

    const validateCode = (rules, value, callback) => {
      // 因为是编辑不是新增，所以可以出现相同的编码
      if (this.form.id && value === this.nodeData.code) {
        callback()
        return
      }

      const isRepeat = this.deptList.some((item) => item.code === value)
      isRepeat ? callback(new Error('该部门编码已经被占用了')) : callback()
    }

    return {
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      },
      rules: {
        name: [
          {
            required: true,
            message: '部门名称不能为空',
            trigger: ['blur', 'change']
          },
          {
            min: 1,
            max: 10,
            message: '部门名称必须为1-10位',
            trigger: ['blur', 'change']
          },
          { validator: validateName, trigger: 'blur' }
        ],
        code: [
          {
            required: true,
            message: '部门编码不能为空',
            trigger: ['blur', 'change']
          },
          {
            min: 1,
            max: 10,
            message: '部门编码必须为1-10位',
            trigger: ['blur', 'change']
          },
          { validator: validateCode, trigger: 'blur' }
        ],
        manager: [
          {
            required: true,
            message: '部门负责人不能为空',
            trigger: ['blur', 'change']
          }
        ],
        introduce: [
          {
            required: true,
            message: '部门介绍不能为空',
            trigger: ['blur', 'change']
          },
          {
            min: 1,
            max: 300,
            message: '部门介绍必须为1-300位',
            trigger: ['blur', 'change']
          }
        ]
      },
      userList: []
    }
  },
  computed: {
    dialogTitle() {
      return this.form.id ? '编辑部门' : '新增部门'
    }
  },
  methods: {
    async getSimpleUserList() {
      const { data } = await resGetSimpleUserList()
      this.userList = data
    },
    handleCloseDialog() {
      this.$emit('closedialog', false)
      this.$refs.form.resetFields()

      this.form = {
        name: '',
        code: '',
        manager: '',
        introduce: ''
      }
    },
    clickSubmit() {
      this.$refs.form.validate(async(valid) => {
        if (!valid) return
        console.log('已经通过')

        // 编辑时执行的代码
        if (this.form.id) {
          const res = await reqUpdateDepartDetail(this.form)
          console.log(res)
          this.$message.success('编辑成功')
        } else {
          // 新增时执行的代码
          const res = await reqAddDepartment({
            ...this.form,
            pid: this.nodeData.id
          })
          console.log(res)
          this.$message.success(res.message)
        }

        this.handleCloseDialog()
        this.$emit('add-depts')
      })
    },
    async getDepartDetail() {
      const { data } = await reqGetDepartDetail(this.nodeData.id)
      this.form = data
    }
  }
}
</script>

<style>
</style>
